$2\mathrm{.}1$ List the issues that may influence the efficiency of Woolworths supply chain.

Supplement your answer with examples.

$2\mathrm{.}2$ Tiger brands is planning a beverage production line. The buyer in the purchasing

department is trying to decide whether to buy plastic bottles used in the production

process from a supplier or to recommend that the company's production

department gear up to do its own in$-$house. The buyer has developed the following

estimates. If product quality and delivery performance are similar for the make$-$or$-$

buy alternatives, should the company buy or make the bottles?

$2\mathrm{.}3$ Rilo Auto is moving to kanban to support its cockpit assembly lines. Calculate the

number of kanbans required for the subassembly used, given the information

below:

$2\mathrm{.}4$ A job shop would like to reduce their component lat sizes to support their new JIT

program. The following data is known about one of the components the company

produces:

Setup labour cost

Irventary Halding cost

Annual Demand

Daly production rate

R$140$ per hour

REO per companent per year

$12000$ units

$120$ units $($b$-$hour shift$)$

$2\mathrm{.}4\mathrm{.}1$ How many minutes of setup should the company aim for regarding this

component?